Inheritance
- Created by: Sarah
- Created on: 28-04-14 12:12
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- Inheritance
- Monohybrid
- genetic crosses
- inheritance of a single gene
- dominant and recessive
- Sex linked
- most commonly attached to X chromosome
- can be carried by women without being affected
- men mostly affected
- pedigree charts show sex linked genes
- Co-dominance and multiple alleles
- both alleles are equally dominant
- sometimes produce a dominance hierarchy
- blood type is an example of co-dominance (AB)
- Allelic frequencies
- p2+2pq+q2
- assumes no mutations arise, no flow of alleles in/out of population and no selection taking place
- Selection
- directional
- stabilising
- Speciation
- geographical isolation through physical barrier
- mutation is selected for
- allelic frequency of each group becomes different
- reproductive isolation
- Monohybrid
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